Propaganda isn't always 100% true, so your answer would be false.
Polk believed that it was the destiny of the U.S. to expand
entire continent as part of its Manifest Destiny. He believed that the war with
Mexico fitted well with that vision.
When the U.S. won it took over several territories from the Mexicans.
With pure democracy, he means a system in which every citizen votes directly for laws, and, with republic, he intends a society in which citizens elect a small body of representatives who then vote for laws.
Answer: Uhh, the US Did amazing because....
Explanation:
It suffered no damage after the war and not only that but Its economy BENEFITED from the reconstruction in Europe after the war.